Exposure
ID
PIONI.2025-07-21T06:04:14.688_1
Header ID
PIONI.2025-07-21T06:04:14.688
Date updated
2025-07-21 06:10:42 UTC+0000
Release date
2025-07-21 06:04:14 UTC+0000
UTC Start
2025-07-21 06:04:14.688
UTC End
2025-07-21 06:04:53.088
MJD Start
60877.2529477775
MJD End
60877.253392221945
Exposure time (s)
38.4
Validation level
1
Tau 0: Coherence time (s)
0.002451
Ambient temperature (°C)
14.97
Seeing (arcsec)
0.76
Observation
ID
68893
Category
calibrator
Program ID
115.28F2.002
Program Title
WEIGHING THE STARS: HIGH-PRECISION MASSES OF F-TYPE MAIN-SEQUENCE BINARIES
Program Type
Normal
PI / COI
JONÁK / MOURARD / NARDETTO / MEILLAND / BROZ
Target
ID
51256
Name
HD170785
RA
277.803513
DEC
-0.44419
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 61.6620 61.4760 126.4000 126.5000
A0-J2 94.7160 94.4080 93.9000 93.9000
A0-K0 108.4340 108.2100 69.8760 69.8350
G1-J2 54.0460 53.9830 56.1000 56.1000
G1-K0 90.4670 90.4640 35.2230 35.2210
J2-K0 44.3730 44.3850 9.4860 9.5760
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28F2.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 60877.2529477775
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD170785
RA 277.803513
DEC -0.44419
HIERARCH ESO INS OPTI2 NAME GRISM
HIERARCH ESO INS OPTI2 ID GRISM
HIERARCH ESO INS FILT1 NAME H
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
HIERARCH ESO DET DIT 0.00075
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 61.662
HIERARCH ESO ISS PBL12 END 61.476
HIERARCH ESO ISS PBLA12 START 126.4
HIERARCH ESO ISS PBLA12 END 126.5
HIERARCH ESO ISS PBL13 START 94.716
HIERARCH ESO ISS PBL13 END 94.408
HIERARCH ESO ISS PBLA13 START 93.9
HIERARCH ESO ISS PBLA13 END 93.9
HIERARCH ESO ISS PBL14 START 108.434
HIERARCH ESO ISS PBL14 END 108.21
HIERARCH ESO ISS PBLA14 START 69.876
HIERARCH ESO ISS PBLA14 END 69.835
HIERARCH ESO ISS PBL23 START 54.046
HIERARCH ESO ISS PBL23 END 53.983
HIERARCH ESO ISS PBLA23 START 56.1
HIERARCH ESO ISS PBLA23 END 56.1
HIERARCH ESO ISS PBL24 START 90.467
HIERARCH ESO ISS PBL24 END 90.464
HIERARCH ESO ISS PBLA24 START 35.223
HIERARCH ESO ISS PBLA24 END 35.221
HIERARCH ESO ISS PBL34 START 44.373
HIERARCH ESO ISS PBL34 END 44.385
HIERARCH ESO ISS PBLA34 START 9.486
HIERARCH ESO ISS PBLA34 END 9.576
HIERARCH ESO ISS AMBI TAU0 START 0.002451
HIERARCH ESO ISS AMBI TAU0 END 0.002451
HIERARCH ESO ISS AMBI TEMP 14.97
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.76